[sdiy] op amp phase inversion

[Czech Martin]

simple amplifier and/or comparator,
e.g. gain of 1.0 or 300mV threshold with some 10mV hysteresis,
frequency 1mHz-20Hz. +-15V supply.

m.c.

-----Original Message-----
From: jhaible at debitel.net [mailto:jhaible at debitel.net]
Sent: Montag, 26. Mai 2003 14:20
To: Czech Martin
Cc: Sdiy (E-mail)
Subject: RE: [sdiy] op amp phase inversion


> can you please recomend a quad op amp that does not latch
> and will not be disturbed with high differential input voltage
> when abused as comparator?
> and is available even at radio shack like stores?
> 
> RC4136 seems to share 741 topology, any other?
> 
> It can be very slow, and input current or offset voltage
> can be bad, also (1uA, 5 mV).


I've used RC4136's recently, because I needed noninverting,
latch-free audio amps in quad package. 
I'm not sure if Vos is < 5mV, though.

What is your application?

JH.




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